71809020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:820

約数の個数: 144

約数和(自身を含む): 238387968

約数和(自身を除く): 166578948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 204, 255, 279, 306, 310, 340, 372, 465, 510, 527, 558, 612, 620, 757, 765, 930, 1020, 1054, 1116, 1395, 1514, 1530, 1581, 1860, 2108, 2271, 2635, 2790, 3028, 3060, 3162, 3785, 4542, 4743, 5270, 5580, 6324, 6813, 7570, 7905, 9084, 9486, 10540, 11355, 12869, 13626, 15140, 15810, 18972, 22710, 23467, 23715, 25738, 27252, 31620, 34065, 38607, 45420, 46934, 47430, 51476, 64345, 68130, 70401, 77214, 93868, 94860, 115821, 117335, 128690, 136260, 140802, 154428, 193035, 211203, 231642, 234670, 257380, 281604, 352005, 386070, 398939, 422406, 463284, 469340, 579105, 704010, 772140, 797878, 844812, 1056015, 1158210, 1196817, 1408020, 1595756, 1994695, 2112030, 2316420, 2393634, 3590451, 3989390, 4224060, 4787268, 5984085, 7180902, 7978780, 11968170, 14361804, 17952255, 23936340, 35904510, 71809020]

約数ペア:

[(1, 71809020), (2, 35904510), (3, 23936340), (4, 17952255), (5, 14361804), (6, 11968170), (9, 7978780), (10, 7180902), (12, 5984085), (15, 4787268), (17, 4224060), (18, 3989390), (20, 3590451), (30, 2393634), (31, 2316420), (34, 2112030), (36, 1994695), (45, 1595756), (51, 1408020), (60, 1196817), (62, 1158210), (68, 1056015), (85, 844812), (90, 797878), (93, 772140), (102, 704010), (124, 579105), (153, 469340), (155, 463284), (170, 422406), (180, 398939), (186, 386070), (204, 352005), (255, 281604), (279, 257380), (306, 234670), (310, 231642), (340, 211203), (372, 193035), (465, 154428), (510, 140802), (527, 136260), (558, 128690), (612, 117335), (620, 115821), (757, 94860), (765, 93868), (930, 77214), (1020, 70401), (1054, 68130), (1116, 64345), (1395, 51476), (1514, 47430), (1530, 46934), (1581, 45420), (1860, 38607), (2108, 34065), (2271, 31620), (2635, 27252), (2790, 25738), (3028, 23715), (3060, 23467), (3162, 22710), (3785, 18972), (4542, 15810), (4743, 15140), (5270, 13626), (5580, 12869), (6324, 11355), (6813, 10540), (7570, 9486), (7905, 9084)]